#include <iostream>

int main ()
{
    int n = -1;
    int i = 0;
    i += n == -1 ? 0 : 2;
    std::cout << i << std::endl;
    size_t j = 0;
    --j;
    --j;
    if (j == 2)
	std::cout << j << std::endl;
}
